Usulután in context: Street-network sprawl trends
Usulutan in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Usulután plotted against El Salvador. Both Usulután and El Salvador follow the same trend. Most recently, Usulután's incremental SNDi rose from 4.58 to 5.32 between 1991-2005 and 2006-2020. In terms of the aggregate network, Usulután ranked 2nd out of 12 in El Salvador as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 5.32
- Rank in El Salvador
- 4th of 12
Entire Network (Aggregate)
- SNDi value
- 3.5
- Rank in El Salvador
- 2nd of 12
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Tsuruoka, Japan
- Xinping, China
- Pattan, Jammu and Kashmir
- Khurai, India
- Sondalia, India
- Olten, Switzerland
In new street additions, Usulután built increasingly disconnected streets over time, while Tsuruoka fluctuated in its street-construction patterns and Khurai built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Usulután and Tsuruoka both became progressively more disconnected, while Khurai grew more disconnected from 1975 through 1991-2005, then improved. Usulután and Tsuruoka have been growing further apart in their street-network character since 1975.